[math-fun] Conway's "Life" & Covid rule

According to wikipedia, "3. Any live cell with more than three live neighbors dies, as if by overpopulation." In retrospect, this appears to be a "social distancing" rule. In various generalizations of "Life" -- e.g., with different sets of rules, on different grid patterns -- e.g., hex, etc. -- are there other interesting versions of "Life" with (and without) "social distancing" rules?